BIL showed up with his new whip, a 2012 Focus bought from a dealer in New Hampshire, where they just stopped doing state inspections.
Thing must have hit a telegraph pole and gotten rebuilt, as the radiator and condenser were both shoved inwards right on center. Bodywork was done, very poorly. Bumper and above were ok but splash shields were flopping around or missing underneath.
Why did it show up? The radiator started leaking. He topped it off from a 5 gallon spring water container in the backseat.

My refractometer reports his coolant mix was good to -3'C.
This generation Focus radiator is interesting to access, especially when the condenser, rad, and fan are smooshed into one unit. Pulled the bumper cover, headlights, and a plastic upper core support that just bolts in. All came out and went back together like Legos. Some bolts were missing or finger tight. Wiring was labelled in masking tape, and stupidly: The headlight 12-pin connector was labelled "headlight" even though it was obviously the only thing it could plug into. In spite of the prezelled, leaking radiator the pretzelled condenser still held freon. I straightened it in place. The active grill shutters were half smashed so I removed the rest of them and zip tied the still-plugged-in actuator out-of-the-way so it wouldn't throw codes.
Got the thing back together but forgot to hook up the hood latch cable.

Turns out the cure is to put it up on ramps, crawl underneath, reach between the rad fan and intake, and manually release it. Good thing I have long, skinny arms. Just kidding, they're fat, so I scraped one up. Refilled with 100% AM/AM and will test concentration after he drives it around so it can mix together. Made good use of my HF 691 piece pushpin kit and a number of zip ties to control all the floppy plastic. Test drove, AC still works, temp held steady, coolant promptly automatically burped through its clever system.
Oh, I have to give a shout-out to Advance Auto for having a COMPLETELY WRONG radiator in a box with the right part number. Don't know if it was a warehouse switcheroo, relabeling fiasco after a merger, but the thing would have been more at home in a F150. The PICTURE on the website and store terminal was correct, though the clerk dismissed it as a stock photo. Went across the street to Autozone where they let me open the box and verify the correct product.